Table 5.

Percentage and risk adjusted odds ratio (OR) * with its 95% confidence interval (95% CI) for eating salty pickled vegetable at least once in the last week by correct and incorrect response to the question “eating less salt usually makes blood pressure go down”.

Response to “eating less salt usually makes blood pressure go down”	N (%) of respondents eating salty picked vegetable ≥ 1 time in the last week	Risk adjusted OR (95% CI) for eating salty picked vegetable ≥ 1 time
Among hypertensives
With correct response (n = 478)	316 (66.1% of 478)	0.83 (0.58–1.20)
With incorrect response (n = 187)	131 (70.1% of 187)	1.0
Among non-hypertensives
With correct response (n = 538)	380 (70.6% of 538)	0.71 (0.51–0.98)
With incorrect response (n = 316)	244 (77.2% of 316)	1.0

Two logistic regression models were fit, one for hypertensives and another for non-hypertensives. Dependant variable is eating salty pickled vegetable at least once in the last week (yes or no); exposure variable is response to the question “eating less salt usually makes blood pressure go down” (correct or incorrect); other independent variables included variables listed in Table 1, such as sex, age, marital status, education, quality of life, chronic disease, self-reported mental and physical health, and caring about self-health.